Description
Our adventure began, as is often the case with this kind of project, with a chat over a drink. All more tipsy than the last, but with a common resolution: “Let’s make our own web browser!”.
Once half sobered up, we decided to start by choosing the right Javascript engine. The V8 engine is our first choice, as it has the advantage of being open source.
Your task today is to check, using the git patch and the supplied executable, that everything is in order.
To solve the challenge, we need to read the flag.txt file.
Files
- docker-compose.yml
-
d8
31.93 MiB – 71af9c8a45a773c46a06704710ff7d77fb861895cdc14082e4a64abd498e56c3 -
holy-cow.patch
6.14 KiB – 281a9b7cf98a64f236d5fbaf900311a9dafd00f08c660040dca976db8f75c786 -
snapshot_blob.bin
397.93 KiB – 750a79affb7570068332627b3ad38fd8d5cc7c4f75e5b963364399d91d14f098
Author
Challenge Instructions
- First, download docker-compose.yml:
curl https://hackropole.fr/challenges/fcsc2024-pwn-holy-cow/docker-compose.public.yml -o docker-compose.yml - Launch the challenge by executing in the same folder:
docker compose up - Then, in another console, access the challenge with Netcat:
nc localhost 4000
In case you encounter problems, please consult the FAQ.
Flag
Submit your solution
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Writeups
There are no public solutions for this challenge yet, but you can submit yours after getting the flag.